Mitigation for mass GC deletion
Delete sessions after 2 seconds from when CC::destroy() is called, to
ensure they get the chance to be re-used without being destroyed but
still get destroyed if they aren't re-used.
This also adds several new unit tests around the functionality to ensure
its thread-safety.
Test: hwuitest
Bug: 300360668
Change-Id: Icc35293ff49e14dc3599fc12d153f70acd29042a
diff --git a/libs/hwui/renderthread/HintSessionWrapper.h b/libs/hwui/renderthread/HintSessionWrapper.h
index f8b876e..36e91ea 100644
--- a/libs/hwui/renderthread/HintSessionWrapper.h
+++ b/libs/hwui/renderthread/HintSessionWrapper.h
@@ -19,6 +19,7 @@
#include <android/performance_hint.h>
#include <future>
+#include <optional>
#include "utils/TimeUtils.h"
@@ -27,6 +28,8 @@
namespace renderthread {
+class RenderThread;
+
class HintSessionWrapper {
public:
friend class HintSessionWrapperTests;
@@ -40,10 +43,15 @@
void sendLoadIncreaseHint();
bool init();
void destroy();
+ bool alive();
+ nsecs_t getLastUpdate();
+ void delayedDestroy(renderthread::RenderThread& rt, nsecs_t delay,
+ std::shared_ptr<HintSessionWrapper> wrapperPtr);
private:
APerformanceHintSession* mHintSession = nullptr;
- std::future<APerformanceHintSession*> mHintSessionFuture;
+ // This needs to work concurrently for testing
+ std::optional<std::shared_future<APerformanceHintSession*>> mHintSessionFuture;
int mResetsSinceLastReport = 0;
nsecs_t mLastFrameNotification = 0;